Device for fastening piano-players to pianos.



No. 714,635. Patented Nov. 25, I902.

. J. a. CHASE. DEVICE FOR FASTENING PIANO PLAYERS T0 PIANUS.

(Application. filed. May 9, 1902.) (No Model.)

UNITED STATES PATENT OFFICE.

JOSEPH H. CHASE, OF BUFFALO, NEWV YORK, ASSIGNOR TO THE CHASE AND BAKER COMPANY, OF BUFFALO, NEW YORK.

DEVICE FOR FASTENING PIANO-"PLAYERS TO PIANOS.

SPECIFICATION forming part of Letters Patent No. 714,635,6lated November 25, 1902.

Application filed May 9, 1902. Serial No. 106,652. (No model.)

To all whom it may concern.-

Be it known that I, JOSEPH H. CHASE, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented a new and useful Device for Fastening Piano-Players to Pianos, of which the following is a specification.

My invention relates to an appliance for fastening an automatic piano-player properly to the piano and for simply and'securely looking the piano-player in such position, so that the proper mechanism of the automatic player 'will engage the keys of the piano, and any relative movement between the piano-player and the piano, either pulling apart, pushing together, or laterally, will be prevented while the player is in use. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure l is a plan View showing the pianoplayer and piano in position for playing and the device embodying my invention. Fig. 2 is a plan view showing in detail my invention, and Fig. 3 is an end elevation of the part of my invention to be attached to the piano.

Similar letters refer to similar parts throughout the several views.

The piano-player is indicated by the letter H, and the piano by the letter K.

The plate D is secured to the under side of the piano, and the arms B and C are secured to it by the pivot F, upon which they swing. The arm 13 has a shoulder :20, and the arm C has a notch y near their outer extremities, respectively. The stop E engages the arms B and C when they are swung out to a position approximating right angles to the piano; but the arm C is permitted to swing so as to clear the shoulder on the arm B before it is engaged by the stop E, as shown in Figs. 2 and 3. The plate A is secured to the pianoplayer, projecting somewhat therefrom, and is so placed that when the player is in position at the piano the projecting portion of plate A rests against the shoulder to of the arm B, in which position it is firmly held by the notch y on the arm C. When the piano-player is being placed in position, the arm C is pushed out as far as permitted by its stop, and the plate A is thus afforded free passage to contact with the shoulder :2, after which the arm C is swung so that the notch y engages the plate A, which is thus firmly held between the shoulder 09 and the notch y. To remove the piano-player, the arm C is pushed back, so as to free the plate A from the notch y.

In actual use two of my devices should be employed,one at each end of the piano-player. When not in use, the arms B and C can be turned on the pivot under the piano out of the way.

What I claim as my invention is 1. A device for fastening a piano-player to a piano, comprising two swinging arms, one of which has a shoulder and the othera notch, and an attaching-piece resting against the shoulder and engaging the notch substantially as shown.

2. A device for fastening a piano-player to a piano, comprising two swinging arms, one having a shoulder and the other a notch, and a stop engaging the arms, substantially as shown.

3. A device for fastening a piano-player to a piano, comprising two swinging arms, one of them having a shoulder and the other a notch, and an attaching-piece resting against the shoulder and engaging the notch, and a stop engaging the arms, substantially as shown.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOSEPH H. CHASE.

WVitnesses:

MARY E. SULLIVAN, ERNEST L. FRISBEE. 

